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BTR .660" lift Platinum Spring Kit - Steel Retainers

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Product Description

.660" Lift Dual Spring Kit for LS engines using stock rocker arms.  Includes dual polished springs, matching chromoly steel retainers, locators of your choice for stock or bronze guides, locks and seals. 


Spring specs are 155 lbs @ 1.780", 380 lbs @ 1.180", 400 lbs @ 1.130, coil bind @ 1.070"  This is a drop in spring kit for all 15 degree LS heads including LS1 LS2 LS3 LS4 LS6 L76 L92 L99 LQ4 LQ9 L33 LSA, etc, this kit will also fit LS7 heads with approximately .045" of spring shim, see item SS015 and SS030.


This kit will not fit LS9 engines, please see item SK006 for LS9 heads.  




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